18289989

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:482

約数の個数: 32

約数和(自身を含む): 28886400

約数和(自身を除く): 10596411

約数列:

[1, 3, 9, 19, 27, 57, 101, 171, 303, 353, 513, 909, 1059, 1919, 2727, 3177, 5757, 6707, 9531, 17271, 20121, 35653, 51813, 60363, 106959, 181089, 320877, 677407, 962631, 2032221, 6096663, 18289989]

約数ペア:

[(1, 18289989), (3, 6096663), (9, 2032221), (19, 962631), (27, 677407), (57, 320877), (101, 181089), (171, 106959), (303, 60363), (353, 51813), (513, 35653), (909, 20121), (1059, 17271), (1919, 9531), (2727, 6707), (3177, 5757)]